How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 11/22100.0*Chance in playoffs100.0*Average seed
AA 68 SJS 87 +12.6
+0.4
KEV 89 FLN 118 +12.5
+0.1
Week of 11/29100.0*Chance in playoffs100.0*Average seed
FLN 134 SJS 100 -0.7
KID 63 AA 82 -0.2
Games Above .500
Chance Will Make Playoffs